AFFYMETRIX INC

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Certification of termination of registration of a class of securities (Section 12(g))

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

No description available

No description available

1.01,1.02,2.04,3.01,3.03,5.01,5.03,5.07,9.01

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional proxy soliciting materials filed by a non-management party

Additional proxy soliciting materials filed by a non-management party

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

Letter from the SEC

2.02,9.01

1.01,9.01

Other Events

5.02,9.01

General form for quarterly reports under Section 13 or 15(d)

Entry into a Material Definitive Agreement

2.02,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Specialized Disclosure Report

5.02,5.07,8.01,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Annual Report Scanned (Paper)

5.02

Annual report pursuant to Section 13 or 15(d)

2.02,9.01

5.02

2.02,5.02,9.01

1.01,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,8.01,9.01

Entry into a Material Definitive Agreement

Submission of Matters to a Vote of Security Holders

Specialized Disclosure Report

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Post-effective amendment to an automatic shelf registration statement

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Annual Report Scanned (Paper)

Annual Report Scanned (Paper)

Weber David A

Last Andrew J.

CHAN NELSON C

GUTHART GARY S

PIGLIUCCI RICCARDO

RAINES MERILEE

Trice Robert H

Witney Frank

Wood Gavin

NACHTSHEIM JAMI K

Witney Frank

Last Andrew J.

Weber David A

Wood Gavin

Witney Frank

Last Andrew J.

Weber David A